TRANSIENT ENHANCEMENT OF NIGERIAN GRID SYSTEM USING OPTIMALLY TUNED UPFC BASED ON SMALL POPULATION PARTICLE SWARM OPTIMIZATION
Journal Title: ASIAN JOURNAL OF NATURAL & APPLIED SCIENCES - Year 2012, Vol 1, Issue 3
Abstract
Transient and dynamic stability considerations are among the most important issues in the reliable and efficient operation of power systems. Flexible AC Transmission Systems (FACTS) devices produced more flexibility in power system operation and control, thus improving the usage of the existing transmission systems. A unified power flow controller (UPFC) has the ability to adjust the three control parameters, viz. the bus voltage, transmission line reactance, and phases angle between two buses either simultaneously or independently. In this paper, a small population based particle swam optimization (SPPSO) is used to optimally tune three parameters of UPFC in a multi-machine power system, providing faster convergence and less computation time. Simulation results on Nigerian grid system modeled in PSAT environment with and without UPFC installed were presented. The results revealed appreciable enhancement of the voltage profile, power flow along the lines and damping of power system oscillations.
Authors and Affiliations
G. A. Bakare, U. O. Aliyu , Y. S. Haruna, U. A. Abu
Keywords
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